of fluorite caf2 from the mohs scale of mineral hardness on the background from connected molecules

background beautiful blue caf2 cluster color connected crystal crystalline decoration decorative design fluoride fluorine fluorite fluorspar gem gemstone geological geology green hardness healing hydrothermal icon illustration isolated jewelry material mine mineral mineralogy mohs molecules natural nature object ore pattern purple rock sample scale semiprecious shiny smooth specimen stone structure surface symbol texture translucent transparent vector violet white